Seen (#364, FrogThai): the 中枢先兆者's shell hit the target and its orthogonal neighbours only — repro: a diagonal
neighbour (√2 ≈ 1.414 from the impact) took nothing, as did a tile two away; the reporter saw the 3×3 in the official game.
Official: PRTS 天赋 of both 先兆者 (one shared kit) 「弹道对半径1.2范围内的所有我方单位造成攻击力100%的无来源物理伤害（此弹道
不会强制击中主目标，碰撞无视迷彩）」. The landing is a 碰撞; PRTS 作战机制 §碰撞体积 (docs/SIM.md, constants.js): collider tests are
the common way and an ally's collider is a 0.25 circle — the rule the engine already applies to ranged enemies' reach.
Now (content/enemies/fly.js kitShell): an ally is hit when its collider touches the 1.2 circle — centre distance ≤ 1.45
(SHELL_REACH = SHELL_RADIUS + ALLY_COLLIDER_RADIUS): the impact tile and the 8 around it, never two tiles away. The
telegraph and the blast are drawn at that reach. [ASSUMED] for this shell (its text names the 碰撞); other content zones
keep their point radius as before. Golden: the three battles with a 先兆者 whose shells land beside a diagonal operator
(roster-001 中枢先兆者, roster-019 and diy-020 先兆者).
sganggs
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